OpenXML Excel file, works in Excel 2007, OpenOffice, etc but not in Excel 2010

Question

Hi everyone,
I have a problem.  I host a free website, sharing source code and ideas with other developers.  One of my projects is a very simple C# class, which generates an Excel 2007 .xlsx file.  All source code is provided, along with a demo showing
how to use it, free of charge.  No registration required.
http://www.mikesknowledgebase.com/pages/CSharp/ExportToExcel.htm
The .xlsx files that this class generates are fine, they open in Excel 2007 & OpenOffice, I've run the OpenXmlValidator
on the files, and there are no reported problems.
However, If I open the file in Excel 2010 (with SP1), it opens, but if I go to the Print or Print Preview screen, Excel 2010 crashes.  
Googling around, I've found that many many users have experienced problems with HP print drivers, I followed some suggestions, such as turning off multi-threading in Excel, but it makes no difference.  I tried setting the default printer as
the "Microsoft XPS Document Writer", but it made no difference.
Here is a copy of the Excel file that my demo produces (and which crashes Excel 2010).   Can someone tell me why it opens okay, but then crashes Excel 2010 ?  
http://www.MikesKnowledgeBase.com/SampleCode/Sample.xlsx
I can get around the problem by loading this file in Excel 2010, saving it as an ".xls" file (!!) and re-loading that... but it kinda defeats the purpose.
And, more generally, why does Excel 2007, OpenOffice and the OpenXmlValidator consider it to be in the correct format, but it crashes Excel 2010 ?  I'm surprised that Excel 2010 doesn't at least attempt to report some kind of problem with the Excel
file, rather than bombing out.
Mike

Answer 1

It seems Workbook.XML doesn't have all the information needed by Excel for pagination while prepare for print.
Using your sample code, here is the XML generated for Workbook.XML part within Open XML package :
<?xml version="1.0" encoding="utf-8"?>
<x:workbook xmlns:x="http://schemas.openxmlformats.org/spreadsheetml/2006/main">
  <x:sheets>
    <x:sheet name="Drivers" sheetId="1" r:id="rId1" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" />
    <x:sheet name="Vehicles" sheetId="2" r:id="rId2" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" />
    <x:sheet name="Vehicle owners" sheetId="3" r:id="rId3" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" />
  </x:sheets>
</x:workbook>
Replace above content with below XML and print should work fine:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<workbook xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships">
  <fileVersion appName="xl" lastEdited="5" lowestEdited="5" rupBuild="9303"/>
  <workbookPr defaultThemeVersion="124226"/>
  <bookViews>
    <workbookView xWindow="510" yWindow="510" windowWidth="4455" windowHeight="2520"/>
  </bookViews>
  <sheets>
    <sheet name="Drivers" sheetId="1" r:id="rId1"/>
    <sheet name="Vehicles" sheetId="2" r:id="rId2"/>
    <sheet name="Vehicle owners" sheetId="3" r:id="rId3"/>
  </sheets>
  <calcPr calcId="0"/>
</workbook>
The change is not with data but few elements which define the view for Excel. The required code change can be found using Open XML SDK tool code-reflect.
Shiv Khare